Theories can be based on any assumptions, however bizarre.
Inflation is taxation without legislation.
Freedom in economic arrangements is itself a component of freedom broadly understood, so economic freedom is an end in itself ... Economic freedom is also an indispensable means toward the achievement of political freedom.
The government solution to a problem is usually as bad as the problem.
How do you hold down government spending?
Concentrated power is not rendered harmless by the good intentions of those who create it.